Device for regulating incubators, &amp;c.



T. J. MORRISON.

DEVICE FOR REGULATING INCUBATORS, 15w.

APPLICATION FILED MAY 15. I9l6.

Patented 10611121916 2 SHEETS-SHEET I.

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T. J. MORRISON.

DEVICE FOR REGULATING INCUBATORS, 61c.

APPLICATION FILED MAY 15, l9l6.

Patented Dec. 12,1916.

2 SHEETS-SHEET 2 I lil] TJJWWF Hickman THOMAS J. MORRISON, OF MANHATTAN, KANSAS.

DEVICE FOR REGULATING INOUBA'IORS, 8w.

Application filed May 15, 1916.

To all whom it may concern:

Be it known that I, THOMAS J. MORRISON, a citizen of the United States, residing at Manhattan, in the county of Riley and State of Kansas, have invented a new and useful Device for Regulating Incubators, of which the following is a specification.

The object of my invention is to provide a device for automatically regulating incubators and to provide novel means for controlling the operation of the thermostats in incubators within predetermined limits, without requiring the constant attention of the operator.

It is a further object of my invention to provide a device adapted for use with incubators of different types.

I attain the objects of my invention by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of the device applied to an incubator of the type in which the damper is pushed upwardly by the thermostat; Fig. 2 is an enlarged view of the theremostat controlling mechanism; Fig. 3 is a vertical section of same; Fig. 4 is a horizontal section on line 4 4 of Fig. 2; Fig. 5 is a side elevation of a modified form of the invention in which the damper is pulled down by the thermostat; Fig. 6 is an enlarged view of the thermostat controlling mechanism of this type; Fig. 7 is a vertical section of same; Fig. 8 is a horizontal section on line 8-8 of Fig. 7; Fig. 9 is a detail of a different type of gage controlling mechanism; and Fig. 10 is a horizontal section of same.

Like characters of reference designate like parts throughout the various views.

Referring to the accompanying drawings: 1 designates suitable supporting means to which the damper arm 3, carrying damper 4 is mounted by means of a suitable pivot 2. A suitable thermostat 5 is operatively connected with damper arm 3 by suitable connecting means 6. The foregoing elements are not claimed as my invention and may be of any suitable type, such as is found in various incubators.

Suitably attached to member 6, I provide an extension 7 having an outwardly turned indicator arm 8. An indicator pointer 9 mounted on end of arm I provide a novel threaded regulator 11 having a slotted portion 12 on a gage 13. Adjustably mounted on member 11 is a thread- Specification of Letters Patent.

8 is shown in Fig. 2.

Patented Dec. 12, 1916. Serial No. 97,631.

ed regulator 14, adapted to contact with pointer 9 to transmit movement to the dam per 4. 15 designates a suitable cap member.

Referring to Figs. 5, 6, 7, and 8, my invention is shown applied to an incubator of the type in which the damper control means 6 is pulled downward. In lieu of base 10, I provide a base 16 having a projection 17 by which the regulating device is tiltably mounted in a groove collar 18 carried by member 3, as illustrated in Figs. 6 and 7. Member 7 extends through an enlarged opening, as illustrated.

I provide a modified construction having a regulating member 22 which is exteriorly threaded as shown and adjustably mounted in an interiorly threaded device 20, having a suitable 13, as and 10.

In the operation of the invention the raising of the temperature in the incubator chamber expands the thermostat 5. The thermostat actuates connecting means 6 to which the damper mechanism is operatively connected. Pointer 9 of arm 8 which is attached to extension 7 which is attached to and operated by means 6 is arranged to transmit its movement to contact member 14. Contact member 14 is adjustably mounted on the member 11 or corresponding member 20 of Fig. 9). Contact member 14 may for example be adjusted to 103 degrees on scale 13 so that pointer 9 will come into contact with this member and by means of its operative connection with damper 4 substantially control the temperature of the incubator chamber without requiring the constant attendance of an operator. If the thermostat and the thermometer are not operating in harmony, the effect is promptly disclosed by the indicator mechanism and the operator is warned.

In the form of my invention disclosed in Figs. 6, 7 and 8 substantially the same prin ciple is employed, but the device is arranged for incubators in which the indicator arm is pulled downward by the thermostat. In this form, the contact member 14 is adjustably mounted below the pointer 9. The wedge-like proiection 17 is provided to make possible a limited tilting movement of the indicator mechanism with the least friction.

In the form of invention shown in Figs. 9 and 10 the same principle of operation is employed as in the other forms and the structure disclosed in Figs. 9 and 10 is adapted illustrated in Figs. 9

for use With'either type of incubator thermostat. Contact member 22 is, however, eX- teriorly threaded for adjustable engagement with a correspondingly interiorly threaded portion of'indicator 20 as illustrated.

above pointer then cap 15. The slotted portion extends full length of member 13.

What I claim is: r

1: In a device for regulating incubators, a thermostat, a damper, means operatively connecting the thermostat and damper, said means comprising a hollow cylindrical temperature regulating member formed With a longitudinal slot and with an indicating scale, a reciprocating device situated within said member and formed with a pointer operating in said slot, and an adjustable contact device in the path of said pointer, for the purposes described.

2. In a device for regulating incubators, a thermostat, a damper, means operatively connecting the thermostat and damper, said means comprising a hollow temperature regulating member formed with a longitudinal slot and with an indicating scale, a reciprocating device having a pointer operating in said slot, and an adjustable contact device in the path of said pointer, for the purposes described.

THOMAS J. MORRISON.

Witnesses EDGAR EAKIN, RUssnLL ALLINGIIAM.

copies of this. patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washing'ton, D. C. 

